WO2000010319A2 - Matrix analog system for the reproduction of images - Google Patents
Matrix analog system for the reproduction of images Download PDFInfo
- Publication number
- WO2000010319A2 WO2000010319A2 PCT/BR1999/000047 BR9900047W WO0010319A2 WO 2000010319 A2 WO2000010319 A2 WO 2000010319A2 BR 9900047 W BR9900047 W BR 9900047W WO 0010319 A2 WO0010319 A2 WO 0010319A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- matrix
- images
- reproduction
- anode
- grids
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/66—Transforming electric information into light information
Definitions
- This invention patent refers to an electronic system developed so as to command a matrix for the reproduction of video images in real time through pixels (image elements) in a way that the image reproduced on the matrix has the same advantages and the same attitude of the conventional cathodic ray tubes that is it may display composite video images in real time without the previous processing of analog/digital or digital/analog converters, without the need for microprocessors, digital memories, shift registers or even computers and converters which are normally needed so that images could be generated on a pixel matrix.
- the display of information under the form of dynamic image when this is obtained by means of electronic reception or storage has been performed with a device called kinescope for more than 70 years.
- the kinescope is a glass device with thick walls, large dimensions and heavy, able to stand the external pressures once there is vacuum inside; the basic principle is to reproduce an image by means of an electron beam mat sweeps a screen embedded with phosphorus oxide and other elements, producing light during a time lapse according to the speed and quantity of electrons that hit the mentioned screen.
- the beam sweeping is controlled electrically or magnetically and is obtained by means of external analog devices, it is also necessary a high voltage producing device (approximately 25,000 volts) to accelerate the electrons inside the tube.
- the image resolution is not limited by a fixed number of pixels and/or light intensity once the resolution and image quality depend on the passing band of the circuit through which the video signal is transmitted rather than the kinescope itself as an image reproduction element.
- Cathodic ray kinescopes present the inconvenience of the size limit due to the need of very high tension to be generated (the larger the kinescope the higher the tension needed) and due to image convergence difficulties. In the last 70 years, because of these reasons commercially speaking, the size of kinescopes did not go much beyond 37" diagonally.
- OF IMAGES is not a new “type of monitor", but a new way of control configuration for matrixes that when applied to LED matrixes or even to the principle of cathodic ray kinescopes (photoluminescent matrix) would considerably improve performance of these. As an example, it would be enough to use the "MATRIX ANALOG
- FIG. 1 shows a general view of the matrix controlled by two devices of sequential distribution.
- FIG. 2 shows an enlarged view of a pixel with an analog memory for working appliances like LED's, lamps and others.
- FIG. 3 shows the arrangement of a system for the assembly of polychromatic pixels onto a photoluminescent appliance.
- the system consists of two sequential devices, one is vertical for the connection to the matrix vertical line (1) and another one for horizontal connection of the matrix column (2).
- Each of the sequential distribution devices has got its own oscillator, one for the vertical connection (3) and one for the vertical connection (4) which according to its adjustment, vertical (5) or horizontal (6) determine the height and width of the matrix image.
- the sequential distribution device has got sequential outputs from Si (7) to Sn (8) where n determines the maximum and only the maximum of the matrix column or line for the authorisation connection of the pixels (9).
- These sequential devices (1) and (2) may be built with dedicated components, transistors, passive element, logical ports and so on.
- the oscillator frequency (3) of the sequential device (1) that commands the matrix lines must be equal to the vertical frequency of the source video signal multiplied by the number of pixels of the matrix column, likewise the oscillator frequency (4) to the sequential device (2) that controls the matrix columns must be given by the horizontal frequency of he video signal multiplied by the number of pixels of the matrix line; to be remarked that it is not established a logical connection between the line command and the column command (characteristic of the digital system).
- This characteristic that initially does not establishes any logic to predetermine which pixel (9) will be authorised at a given moment and for how long, is the one that allows the reproduction of an analog video signal without needing to digitise it or even define previously the number of pixels to be used on the matrix.
- the analog memorisation electronic device (11) takes advantage of a logical port (12) of the kind AND with two inputs, connected with the crossing of the matrix column and line. This way the pixel will only be authorised when the respective line and column are active. As a result the output of the AND port will activate one or more electromc switches (13), depending if the pixel is dichromatic or polychromatic.
- the electromc switch (13) has the function of permitting the connection of the video signal ready at the switches (14) during the moment of the authorisation of the pixel so that this same video signal be stored under the form of tension into a capacitor (15).
- the capacitor (15) memorised analogically the voltage of the video signal present at the moment of authorisation and keeps such voltage up to the next authorisation of the pixel, when again through the electronic switch (13) the video signal determines or not a new voltage for the capacitor (15).
- an operational amplifier (17) configured as follower and not as a unitary gain voltage inverter with high input impedance and low output impedance which purpose is to activate the base of a transistor driver (18) that controls the hght emitter (16) or a set of these according to the capacitor WO 00/10319 _ ? _ PCT/BR99/00047
- the anode shall be coated with only one kind of phosphorous corresponding to the desired colour.
- the polarisation of the grids is provided by the sequential distribution devices.
- the first sequence of grids is controlled by the vertical distribution device while the other sequence is controlled by the horizontal distribution device thus defining a unique crossing of the polarised grids at one time.
- the anodes are all time polarised by an independent tension produced by the sequential distribution devices and that have as objective to obtain a greater acceleration of the electrons that may pass through the vertical and horizontal grids, against the phosphorous, obtaining so a higher brightness proportionally to the polarising tension.
- the video signal is applied directly to the cathode which maybe hot or cold.
- the second sequence of grid is subdivided into three smaller grids which are as thick as the phosphorus that covers the anode strips which are overlaid; the connections of the sequential devices instead of being attached to the anode strips are now attached to these grid strips.
- the anode strips that are now connected all together, receive a fixed tension.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU45946/99A AU4594699A (en) | 1998-08-11 | 1999-06-17 | Matrix analog system for the reproduction of images |
CA002342161A CA2342161A1 (en) | 1998-08-11 | 1999-06-17 | Matrix analog system for the reproduction of images |
US09/762,876 US6954189B1 (en) | 1998-08-11 | 1999-06-17 | Matrix analog system for the reproduction of images |
EP99966760A EP1183860A2 (en) | 1998-08-11 | 1999-06-17 | Matrix analog system for the reproduction of images |
JP2000565663A JP2002523791A (en) | 1998-08-11 | 1999-06-17 | Matrix analog system for image reproduction |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9802700A BR9802700A (en) | 1998-08-11 | 1998-08-11 | Analog system for matrix image reproduction. |
BRPI9802700-0 | 1998-08-11 | ||
BRMU7901399-6 | 1999-05-17 | ||
BR7901399U BR7901399U (en) | 1999-05-17 | 1999-05-17 | Provision introduced in analog system for matrix image reproduction |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000010319A2 true WO2000010319A2 (en) | 2000-02-24 |
WO2000010319A3 WO2000010319A3 (en) | 2000-07-06 |
Family
ID=25663972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR1999/000047 WO2000010319A2 (en) | 1998-08-11 | 1999-06-17 | Matrix analog system for the reproduction of images |
Country Status (7)
Country | Link |
---|---|
US (1) | US6954189B1 (en) |
EP (1) | EP1183860A2 (en) |
JP (1) | JP2002523791A (en) |
KR (1) | KR100434922B1 (en) |
AU (1) | AU4594699A (en) |
CA (1) | CA2342161A1 (en) |
WO (1) | WO2000010319A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101033636B1 (en) * | 2010-10-27 | 2011-05-16 | 장동현 | Portable boiler |
US10366674B1 (en) * | 2016-12-27 | 2019-07-30 | Facebook Technologies, Llc | Display calibration in electronic displays |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5170158A (en) * | 1989-06-30 | 1992-12-08 | Kabushiki Kaisha Toshiba | Display apparatus |
WO1995020210A2 (en) * | 1994-01-24 | 1995-07-27 | Arithmos, Inc. | Electronic systems for driving liquid crystal displays |
US5784073A (en) * | 1991-06-14 | 1998-07-21 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device and method of driving the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63194481A (en) * | 1987-02-07 | 1988-08-11 | Nec Home Electronics Ltd | Display using solid-state display device |
TW272322B (en) * | 1993-09-30 | 1996-03-11 | Futaba Denshi Kogyo Kk | |
KR0154815B1 (en) * | 1995-01-13 | 1998-12-15 | 김광호 | The storage capacitance wiring structure and driving method in the thin flim transistor liquid crystal display device |
US5598057A (en) * | 1995-03-13 | 1997-01-28 | Texas Instruments Incorporated | Reduction of the probability of interlevel oxide failures by minimization of lead overlap area through bus width reduction |
KR100286828B1 (en) * | 1996-09-18 | 2001-04-16 | 니시무로 타이죠 | Flat panel display device |
US6278425B1 (en) * | 1997-06-10 | 2001-08-21 | Deluca Michael | Single array edge intersecting beam display panel |
US6140983A (en) * | 1998-05-15 | 2000-10-31 | Inviso, Inc. | Display system having multiple memory elements per pixel with improved layout design |
-
1999
- 1999-06-17 US US09/762,876 patent/US6954189B1/en not_active Expired - Fee Related
- 1999-06-17 KR KR10-2001-7001826A patent/KR100434922B1/en not_active IP Right Cessation
- 1999-06-17 JP JP2000565663A patent/JP2002523791A/en active Pending
- 1999-06-17 WO PCT/BR1999/000047 patent/WO2000010319A2/en not_active Application Discontinuation
- 1999-06-17 AU AU45946/99A patent/AU4594699A/en not_active Abandoned
- 1999-06-17 CA CA002342161A patent/CA2342161A1/en not_active Abandoned
- 1999-06-17 EP EP99966760A patent/EP1183860A2/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5170158A (en) * | 1989-06-30 | 1992-12-08 | Kabushiki Kaisha Toshiba | Display apparatus |
US5784073A (en) * | 1991-06-14 | 1998-07-21 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device and method of driving the same |
WO1995020210A2 (en) * | 1994-01-24 | 1995-07-27 | Arithmos, Inc. | Electronic systems for driving liquid crystal displays |
US5739803A (en) * | 1994-01-24 | 1998-04-14 | Arithmos, Inc. | Electronic system for driving liquid crystal displays |
Also Published As
Publication number | Publication date |
---|---|
CA2342161A1 (en) | 2000-02-24 |
KR100434922B1 (en) | 2004-06-09 |
KR20010079639A (en) | 2001-08-22 |
AU4594699A (en) | 2000-03-06 |
JP2002523791A (en) | 2002-07-30 |
EP1183860A2 (en) | 2002-03-06 |
WO2000010319A3 (en) | 2000-07-06 |
US6954189B1 (en) | 2005-10-11 |
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